基于3,5-二硝基苯甲酸和2,2′-联吡啶的Cu(Ⅱ)、Zn(Ⅱ)配合物的合成及晶体结构  

Synthesis,Crystal Structures of Cu(Ⅱ) and Zn(Ⅱ) Complexes with 3,5-Dinitrobenzoic Acid and 2,2′-Bipyridine Ligands

作　　者：胡春燕[1] 肖伟[1] 陶白龙 谭高好 袁厚群[1] 

机构地区：[1]江西农业大学理学院化学系,南昌330045

出　　处：《无机化学学报》2014年第2期257-263,共7页Chinese Journal of Inorganic Chemistry

基　　金：江西省自然科学(青年)基金(No.20132BAB213002);人事部留学人员科技活动项目择优资助(启动类);江西省教育厅基金(No.GJJ12252)资助项目

摘　　要：以3,5-二硝基苯甲酸(3,5-Hdnbc)和2,2′-联吡啶(2,2′-bipy)为配体,与Zn2+和Cu2+反应,得到了4个配合物[Zn(3,5-dnbc)2(2,2′-bipy)(H2O)]·(3,5-Hdnbc)(1),[Cu(3,5-dnbc)2(2,2′-bipy)(H2O)](2),[Cu(2,2′-bipy)2(3,5-dnbc)](NO3)·2(3,5-Hdnbc)(3),和[Cu(2,2′-bipy)2Cl](3,5-dnbc)·(3,5-Hdnbc)(4)。用元素分析、红外光谱对其进行了表征,并用单晶X-射线衍射测定了配合物的晶体结构;对配合物1和2进行了热重分析。4个配合物均为单核分子。配合物1中,Zn2+离子是五配位的三角双锥结构;配合物2中,Cu2+离子是五配位的变形四方锥结构;配合物3和4中,Cu2+离子均是五配位的三角双锥结构;配合物中存在氢键和π-π堆积等弱的分子间作用力。Four metal-organic supramolecular complexes, [Zn（3,5-dnbc）2（2,2＇-bipy）（H2O）]·（3,5-Hdnbc） （1）, [Cu（3,5-dnbc）2（2,2＇-bipy）（H2O）] （2）, [Cu（2,2＇-bipy）2（3,5-dnbc）]（NO3）·2（3,5-Hdnbc） （3）, and [Cu（2,2＇-bipy）2Cl]（3,5-dnbc）·（3,5-Hdnbc） （4） were obtained by the reactions of 3,5-dinitrobenzoic acid and 2,2＇-bipyridine as ligands with Zn2＋ and Cu2＋ ions. The four complexes were characterized by elemental analysis, IR, and the crystal structures were determined by single X-ray diffraction. The complexes of 1 and 2 were characterized by thermal gravimetric analysis. All of the four complexes are mononuclear complexes. In complex 1, Zn2＋ is five-coordination in a distorted trigonal bipyramid geometry; in complex 2, Cu2＋ is five-coordination in a distorted tetragonal pyramid geometry; in complex 3 and 4, Cu2＋ is five-coordination in a distorted trigonal bipyramid geometry. Hydrogen bonding and π-π interactions are observed in these complexes. CCDC： 931926, 1; 931927, 2; 931928, 3; 931929, 4.

关 键 词：3 5-二硝基苯甲酸 2 2'-联吡啶 金属有机配合物 晶体结构 

分 类 号：O614.121[理学—无机化学] O614.241[理学—化学]